Have a look at a picture of a class 710 cab, it's just overload.
For a case in point of what distractions are possible, on one class of our new units some bright spark has decided to perform a software update that means that any time some passenger presses a 'call for aid' (every few minutes now on a Friday/Saturday night) the main TCMS ('driver') screen that displays the drivers power and brake position, and is safety critical, suddenly reverts to a page that only shows the PA system. The driver doesn't even operate the PA on our units, we have guards for that. This is a recent software change and would be a huge distraction at certain critical moments considering the change in screen to something useless is also accompanied by lights and a loud audible alarm - not what you want when you're a coach length from a buffer stop.
For a case in point of what distractions are possible, on one class of our new units some bright spark has decided to perform a software update that means that any time some passenger presses a 'call for aid' (every few minutes now on a Friday/Saturday night) the main TCMS ('driver') screen that displays the drivers power and brake position, and is safety critical, suddenly reverts to a page that only shows the PA system. The driver doesn't even operate the PA on our units, we have guards for that. This is a recent software change and would be a huge distraction at certain critical moments considering the change in screen to something useless is also accompanied by lights and a loud audible alarm - not what you want when you're a coach length from a buffer stop.